Asphaltene Reserve Stability Number
Rough stability screen - residual fuel is stable if Reserve = P-value − 1 ≥ 0.4. Values below 0.2 indicate impending asphaltene precipitation.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Peptization value (ASTM D7060) | ||
| P-value − 1 |
Source: ASTM D7060; ISO 8217 Annex F guidance
In short
Rough stability screen - residual fuel is stable if Reserve = P-value \u2212 1 \u2265 0.